1. Do Now: March 14th Mar 16: Write a statement about the relationship between the probability of an event and the probability of the complement of the event. Give examples to support your statement.

2. Lesson 21-2: Theoretical and Estimated Probabilities March 16, 2016

3. Today’s Objectives: Calculate theoretical probabilities for a probability experiment. Estimate probabilities by observing outcomes of a probability experiment. Compare theoretical and estimated probabilities.

4. Notes Theoretical Probability 30/40 = 3/4 Milk Chocolate

5. Estimated 13/20 Probability 13/20 = 0.65 30/40 = 0.75

6. Bag OneIt has more milk chocolate

7. Notes 7/15

8. Notes 7/15

9. Rotation: Group 1Group 2Group 3Group 4 1 st THAM 2 nd HMTA 3 rd MAHT 4 th ATMH

10. Exit Ticket: Mar 16: Exit Ticket: A brown paper bag contains 100 plastic chips. Of these chips, 30 are red, 50 are green, and 20 are blue. A chip will be selected at random from this bag. Calculate the probability that the selected chip is green. Is the probability that you just calculated a theoretical probability or an estimated probability? Why?